CN102883345A - Method for detecting coverage void based on multi-network switch in long term evolution network - Google Patents
Method for detecting coverage void based on multi-network switch in long term evolution network Download PDFInfo
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- CN102883345A CN102883345A CN2012102273979A CN201210227397A CN102883345A CN 102883345 A CN102883345 A CN 102883345A CN 2012102273979 A CN2012102273979 A CN 2012102273979A CN 201210227397 A CN201210227397 A CN 201210227397A CN 102883345 A CN102883345 A CN 102883345A
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Abstract
The invention relates to the technology of 3G (The 3rd Generation Telecommunication) long term evolution, and provides a method for detecting a coverage void based on multi-network switch in an LTE (Long Term Evolution) network, which is realized by using switch among different wireless access technology networks to depict specific existing regional extent of the coverage void, can be hierarchically described depending on different types of service and the speed rate of movement, is cost-saving due to the discovery process without human involvement, has high efficiency, and is convenient to use. The method comprises the following steps: switching UE (User Equipment) from the LTE network to other available networks; starting recording measurement information reported by the UE; switching the UE from the other available networks back to the LTE network; stopping recording the measurement information reported by the UE; and using the measurement information reported by a certain number of UE for a period of time to depict the regional extent of the coverage void.
Description
Technical field
The present invention relates to Long Term Evolution (Long Term Evolution, the LTE) technology of 3G, especially relate to the detection method in the covering cavity of switching based on many nets in a kind of long-term evolving network.
Background technology
Along with the development of mobile communication technology, the user has higher requirement to content and the quality of mobile communication.In order to adapt to the trend of mobile that global radio communication presents, broadband and IPization, in the end of the year 2004, third generation partner program (3rd Generation Partnership Project, 3GPP) tissue has proposed the Long Term Evolution (LTE) of 3G.The overall goal of LTE project is to obtain higher data rate, lower time delay, improved power system capacity and coverage, and lower cost.
At the LTE networking initial stage, covering problem is difficult to avoid, and it is again the most one of problems of concern of operator, and the appearance of covering problem has affected user's perception dramatically.In general, the covering problem main manifestations that relates in the mobile communications network is set several aspects such as unreasonable for covering cavity, the weak district of covering, pilot pollution and adjacent area.Wherein cover the cavity the most common, it refers to uncovered situation occur in the area that should cover fully, and its type mainly contains:
1, the minizone noncontinuity covers the cavity:
2, because the shade that target stops cavity;
3, isolated island cavity;
4, up-downgoing dismatching cavity;
5, the overlapping cavity of weak covering.
Wherein, the detection method in the covering cavity of Class1 and type 2 is emphasis of studying at present.A kind of typical covering cavity is the shade cavity that stops generation by building, and another kind of typical covering cavity is the cavity that the discontinuous covering of a plurality of neighbor cells produces.
Covering the cavity mainly is owing to former thereby generations such as overlay device damage, the overlay area wireless environment changes, increases new covering requirement.
At present, mainly realize by drive test for the detection that covers the cavity, but following network is owing to heterogeneous networks coexists more complex, a large amount of wireless parameters and data will make network optimization personnel's workload significantly improve, therefore find that by drive test the cost of covering problem increases day by day, and real-time is unsatisfactory, can not be as efficient method in the same way.
In addition, mostly be confined to terminal measurement report for the research that covers the cavity, and the research that covers the cavity do not specifically described the regional extent at its place.For example disclosed a kind of detection of Chinese patent CN 102123427 proposes the base station data of the Radio Link Failure of the terminal to report that receives sent to self-organizing network center (SON) in method, SON center, subscriber equipment and the system that covers the cavity; Whether SON screens the described Radio Link Failure data of collecting according to pre-defined rule, exist according to the Radio Link Failure Data Detection after the screening to cover the cavity.This Patent Office is limited to detect whether cover empty existence, does not provide the more specific location information that covers the cavity, is not easy to follow-up reparation to covering problem and adjustment.
In the discussion of current third generation partner program tissue, once proposed to allow subscriber equipment (User Equipment, UE) be recorded in generation Radio Link Failure (Radio link Failure, RLF) before measurement result, and UE measured measurement result when initiate rebuilding subsequently, and initiate Radio Resource at UE to network side and control (Radio Resource Control, RRC) during connection reconstruction, article one message by the UE reconstruction, be that RRC connection reconstruction request message (RRC Connection Reestablishment Request) notifies measurement result to network side, this measurement result may comprise that the reference signal of the residential quarter that measures accepts power (Reference Signal Receiving Power, RSRP), perhaps Reference Signal Received Quality (Reference Signal Receiving Quality, RSRQ) etc., positional information when in addition, optionally also having the generation RLF corresponding with measurement result.Network side can detect according to reporting of UE after receiving and cover the cavity.In addition, Chinese patent CN 101790173 open network coverage detection method and systems comprise that network side receives the measurement report of the terminal to report that satisfies default report condition, and described prerequisite is relevant with cell signal strength; Determine network coverage situation between the neighbor cell according to described measurement report.
Summary of the invention
The object of the present invention is to provide a kind of by utilizing the internetwork switching of different radio access technologies, describe to cover the concrete regional extent that the cavity exists, and can be according to different types of service and rate travel, hierarchical description, discovery procedure need not artificial participation, save cost, the detection method in the covering cavity of switching based on many nets in the long-term evolving network of efficient easily row.
The present invention includes following steps:
1) UE switches to other available networks from the LTE network;
2) begin to record the metrical information that UE reports;
3) UE switches back the LTE network from other available networks;
4) stop to record the metrical information that described UE reports;
5) metrical information that reports according to the described UE of some in a period of time describes to cover the regional extent in cavity.
In step 1), described UE is the access conditions that the LTE network can not satisfy UE from the condition that the LTE network switches, in addition, if there are not other changeable networks, UE will send " covering the cavity " alarm signal before the threshold level prerequisite, and by the control channel reporting base station.
In step 2) in, the metrical information that described UE reports comprises that UE reports type of service, rate travel and positional information constantly, wherein, positional information comprises longitude, latitude and height; After switching, UE reports the base station that connects with its positional information first, packet data gateway by this network is uploaded to EPC afterwards, for the 3GPP Access Network, the criterion that network is selected defines in TS 23.122, the corresponding flow process of selecting can be with reference to agreement TS 36.300 and TS 23.304, selects flow process and can be with reference to agreement TS 23.402 on the impact of the network architecture for the network of non-3 GPP access network;
In step 3), the condition that described switching occurs is the condition that the LTE network satisfies the UE access again.
In step 5), the described regional extent of describing to cover the cavity can be described the regional extent in the covering cavity of different brackets level, and the concrete grammar of the regional extent in the described covering cavity of describing the different brackets level can be:
(1) according to the different type of service of UE, rate travel terminal is classified, mark with different identification;
(2) follow the trail of the mobile alignment of all UE, draw and cover hole region.
To sum up, the present invention has designed the method that the detection of switching based on many nets in the LTE network covers the cavity, pass through the method, can detection promptly and accurately cover the cavity, and demonstration covers the concrete zone in cavity, especially, the present invention can detect the covering hole region of different service types, different rate travels, makes things convenient for local optimum.
Description of drawings
Fig. 1 is the step schematic diagram of the embodiment of the invention.
Fig. 2 is for covering empty schematic diagram.
Fig. 3 is the layered coverage cavity schematic diagram of different service types, different rate travels.In Fig. 3, mark ▲ be the user of 0km/h12.2k; ● be the user of 5km/h 12.2k; ★ is the user of 60km/h 12.2k; △ is the user of 0km/h 64k; Zero is the user of 5km/h 64k; ☆ is the user of 60km/h 64k.
Embodiment
Further set forth technical scheme of the present invention below in conjunction with drawings and Examples.
Referring to Fig. 1～3.
1) when a certain area exists the covering cavity not meet the UE access conditions owing to the LTE network, UE will switch to preferably other available networks of network signal, if there are not other changeable networks, UE will send " covering the cavity " alarm signal before the threshold level prerequisite, and by the control channel reporting base station.
2) record at once the metrical information that UE reports after the switching, mainly contain UE and report type of service, rate travel and positional information constantly, wherein, positional information comprises longitude, latitude and height; After switching, UE reports the base station that connects with its positional information first, packet data gateway by this network is uploaded to EPC afterwards, for the 3GPP Access Network, the criterion that network is selected defines in TS 23.122, the corresponding flow process of selecting can be with reference to agreement TS 36.300 and TS 23.304, selects flow process and can be with reference to agreement TS 23.402 on the impact of the network architecture for the network of non-3 GPP access network.
3) after this, record at set intervals the metrical information that UE reports.
4) until UE moves to the LTE network signal when meeting the position of UE access conditions, UE switches back the LTE network, after this no longer records the position of this UE.
5) in statistics a period of time, the mobile alignment of the UE of some, and marginal point in the circuit coupled together, depict the zone that covers the cavity.
6) as shown in Figure 2, wherein UE1 ~ UE6 be sometime the section in the statistics the user, black circle represents that interior UE of this time period switches to the position of other available networks for the first time from the LTE network, soft dot represents that UE in this time period is for the first time from position that other available networks switch back the LTE network, dotted line represents the route that each UE moves, and solid line represents the overlay area in the covering cavity depicted.
7) especially, the present invention depicts according to the different type of service of terminal, different rate travels and covers the cavity.The present invention enumerates following rate travel and type of service.Rate travel: 0km/h, 5km/h, 60km/h; Type of service: 12.2k speech business, 64k data service are example, specifically describe as follows:
When (1) the UE rate travel was 0km/h, 12.2k speech business and the UE position that can not initiate the 64k data service can not be initiated in record respectively.
When (2) the UE rate travel was 5km/h, 12.2k speech business and the UE position that can not initiate the 64k data service can not be initiated in record respectively.
When (3) the UE rate travel was 60km/h, 12.2k speech business and the UE position that can not initiate the 64k data service can not be initiated in record respectively.
(4) be presented on the electronic chart with different labeled, through after a while, to the UE statistics of some, draw the covering hole region figure of different levels, as shown in Figure 3.
More than for the example of preferably executing of the present invention, should be pointed out that the present invention can also have other multiple examples of executing, in the situation that do not deviate from spirit of the present invention and essence thereof, any modification of doing, be equal to alternative, improvement etc., all should be within protection scope of the present invention.
Claims (6)
1. the detection method in the covering cavity of switching based on many nets in the long-term evolving network is characterized in that may further comprise the steps:
1) UE switches to other available networks from the LTE network;
2) begin to record the metrical information that UE reports;
3) UE switches back the LTE network from other available networks;
4) stop to record the metrical information that described UE reports;
5) metrical information that reports according to the described UE of some in a period of time describes to cover the regional extent in cavity.
2. the detection method in the covering cavity of switching based on many nets in the long-term evolving network as claimed in claim 1, it is characterized in that in step 1), described UE is the access conditions that the LTE network can not satisfy UE from the condition that the LTE network switches, if there are not other changeable networks, UE will send " covering the cavity " alarm signal before the threshold level prerequisite, and by the control channel reporting base station.
3. the detection method in the covering cavity of switching based on many nets in the long-term evolving network as claimed in claim 1, it is characterized in that in step 2) in, the metrical information that described UE reports comprises that UE reports type of service, rate travel and positional information constantly, wherein, positional information comprises longitude, latitude and height; After switching, UE reports the base station that connects with its positional information first, packet data gateway by this network is uploaded to EPC afterwards, for the 3GPP Access Network, the criterion that network is selected defines in TS 23.122, the corresponding flow process of selecting can be with reference to agreement TS 36.300 and TS 23.304, selects flow process and can be with reference to agreement TS 23.402 on the impact of the network architecture for the network of non-3 GPP access network.
4. the detection method in the covering cavity of switching based on many nets in the long-term evolving network as claimed in claim 1 is characterized in that in step 3), and the condition that described switching occurs is the condition that the LTE network satisfies the UE access again.
5. the detection method in the covering cavity of switching based on many nets in the long-term evolving network as claimed in claim 1 is characterized in that in step 5), and the described regional extent of describing to cover the cavity is the regional extent of describing the covering cavity of different brackets level.
6. the detection method in the covering cavity of switching based on many nets in the long-term evolving network as claimed in claim 5 is characterized in that the concrete grammar of the regional extent in the described covering cavity of describing the different brackets level is:
(1) according to the different type of service of UE, rate travel terminal is classified, mark with different identification;
(2) follow the trail of the mobile alignment of all UE, draw and cover hole region.
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| CN104661257A (en) * | 2013-11-19 | 2015-05-27 | 中国移动通信集团湖南有限公司 | Testing method and device for network coverage performance |
| CN105338591A (en) * | 2014-08-11 | 2016-02-17 | 中兴通讯股份有限公司 | Method and device for searching for high-speed network in high-speed network edge cell |
| CN105764080A (en) * | 2016-04-18 | 2016-07-13 | 广东省电信工程有限公司 | Analysis method and apparatus for event of switching LTE to WCDMA |
| US10057811B2 (en) | 2015-07-22 | 2018-08-21 | Microsoft Technology Licensing, Llc | Hierarchical spectrum offload |
| WO2022226833A1 (en) * | 2021-04-28 | 2022-11-03 | Oppo广东移动通信有限公司 | Method for recording coverage hole, terminal device, network device, and storage medium |
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| CN102448079A (en) * | 2010-10-14 | 2012-05-09 | 中兴通讯股份有限公司 | Method and device for determining failure cause of radio link |
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| CN101420711A (en) * | 2007-10-22 | 2009-04-29 | 华为技术有限公司 | Method, the Apparatus and system of metrical information, detection covering problem are provided |
| CN102348219A (en) * | 2010-08-04 | 2012-02-08 | 电信科学技术研究院 | Minimization drive test (MDT) processing method based on coverage hole and equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104661257A (en) * | 2013-11-19 | 2015-05-27 | 中国移动通信集团湖南有限公司 | Testing method and device for network coverage performance |
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| CN105338591A (en) * | 2014-08-11 | 2016-02-17 | 中兴通讯股份有限公司 | Method and device for searching for high-speed network in high-speed network edge cell |
| US10057811B2 (en) | 2015-07-22 | 2018-08-21 | Microsoft Technology Licensing, Llc | Hierarchical spectrum offload |
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| WO2022226833A1 (en) * | 2021-04-28 | 2022-11-03 | Oppo广东移动通信有限公司 | Method for recording coverage hole, terminal device, network device, and storage medium |
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Application publication date: 20130116 |